本文根据反刍动物蛋白质、脂肪营养代谢的特点，较为详尽的阐述了日粮中蛋白质和脂肪水平对粗纤维消化率的影响。
According to the characteristic of the ruminant protein and fat metabolism, Detailed explaining the influence of protein and fat level on the digestibility of crude fiber in ruminant diet.
脂肪作为供能的营养素热增耗低，在反刍动物日粮中添加脂肪是提高日粮能量浓度的重要途径。
The high content of energy and low consumption in supplying energy fat added was used as an effective method of increasing diet energy concentration.
脂肪作为供能的营养素热增耗低，在反刍动物日粮中添加脂肪是提高日粮能量浓度的重要途径。
The high content of energy and low consumption in supplying energy fat added was used as an effective method of increasing diet energy concentration.
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